Finding the Third Proportional to 13,876.50 and 30,309

Step by Step Solution

1. Step 1: Write the proportion equation
   13,876.50 : 30,309 = 30,309 : x
2. Step 2: Convert to fraction form
   13,876.50/30,309 = 30,309/x
3. Step 3: Cross multiply
   13,876.50x = 30,309 × 30,309
4. Step 4: Simplify right side
   13,876.50x = 918,635,481
5. Step 5: Solve for x
   x = 918,635,481/13,876.50
6. Step 6: Final answer
   x = 66,200.81